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Wilfordine and camptothecin compounded insecticide and preparation method thereof

A technology of triptolide and insecticide, which is applied in the field of pesticides, can solve the problems of limited insect lethality and limited killing range, and achieve the effects of good insecticidal effect, convenient use and low cost

Inactive Publication Date: 2018-04-06
昭平县科学技术实验场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, a single tripterygium alkaloid or camptothecin has limited killing power to insects, and the killing range is not wide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Take 1kg freshly picked philodendron philodendron leaves, 1kg tripterygium twig root, 0.5kg Polygonum lentils, and 0.5kg clove root, wash them with water, grind the washed raw materials with a pulverizer, sieve and mix them to obtain powder, add the powder to 32.5kg of ethanol solution, then heat it under reflux at a heating temperature of 50°C, heat for 1 hour and then filter, collect the filtrate, add 32.5kg of ethanol to the filter residue, then heat it under reflux at a heating temperature of 60°C, and heat for 2 hours Filter again, the above-mentioned two filtrates are mixed and merged, finally add 1kg citric acid, 0.5kg sorbitol polyoxyethyl ether and 0.2kg ascorbic acid in the filtrate of the combined solution, stir evenly, promptly obtain triptophyrine and camptothecin-containing compound insecticides. Dilute it 100 times and spray it on the stalks and leaves of fruit trees. It is used for cabbage caterpillars and rice planthoppers, and the control rate reaches ...

Embodiment 2

[0044] Get 1.2kg of freshly picked philodendron leaves, 1.2kg of tripterygium twig root, 0.8kg of Polygonum lentils, and 0.8kg of clove root, wash with water, pulverize and sieve the cleaned above-mentioned raw materials to obtain a mixture, mix the pulverized Add 80kg of ethanol solution to the material, and then heat it under reflux at a heating temperature of 60°C. After heating for 2 hours, filter it, collect the filtrate, add 80kg of ethanol to the filter residue, and then heat it under reflux at a heating temperature of 70°C. Heating for 3 hours Filter again, the above-mentioned two filtrates are mixed and merged, finally add 1.2kg citric acid and 0.4kg sorbitol polyoxyethyl ether and 0.25kg ascorbic acid to the merged filtrate and stir evenly, promptly obtain the compound killing compound that contains tripteride and camptothecin Insecticide, diluted 200 times and sprayed on the stems and leaves of fruit trees, used for cabbage caterpillars and rice planthoppers, the con...

Embodiment 3

[0046] Get 2kg of philodendron philodendron leaves freshly picked, 2kg of tripterygium twig root, 1kg of Polygonum lentils, and 1kg of clove root, wash with water, pulverize and sieve the cleaned above-mentioned raw materials to obtain a mixture, and add the pulverized mixture to 113kg of Then heat it under reflux, the heating temperature is 70°C, filter after heating for 3 hours, collect the filtrate, add 113kg of ethanol to the filter residue, then heat it under reflux, the heating temperature is 80°C, filter after heating for 4h, The above-mentioned two filtrates are mixed and merged, and finally, 1.5kg citric acid and 0.2kg polyoxyethyl ether of sorbitol and 0.3kg ascorbic acid are added to the merged filtrate and mixed evenly, to obtain the compound insecticide containing tripterine and camptothecin, Dilute it 300 times and spray it on the stalks and leaves of fruit trees for use on cabbage caterpillars and rice planthoppers, and the control rate reaches 88%.

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PUM

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Abstract

A wilfordine and camptothecin compounded insecticide comprises the following components: Camptotheca acuminata leaf, tripterygium wilfordii root, red-knees herb, clove root, citric acid, sorbitol polyoxyethylene ether and ascorbic acid. The invention further discloses a preparation method of the wilfordine and camptothecin compounded insecticide. The method comprises the following steps: the Camptotheca acuminata leaf, the tripterygium wilfordii root, the red-knees herb and the clove root are washed, smashed and mixed, ethanol is added, the mixture is heated in a reflux device and filtered twice, then citric acid, sorbitol polyoxyethylene ester and ascorbic acid are added, and the wilfordine and camptothecin compounded insecticide is obtained.

Description

technical field [0001] The invention relates to a botanical insecticide and a preparation method thereof, in particular to a compound insecticide containing triptolide and camptothecin and a preparation method thereof, belonging to the field of pesticides. Background technique [0002] In order to harvest food, pesticides are often used in the process of planting crops, but the long-term use of traditional chemical pesticides has brought various disadvantages, such as the generation of pest resistance, residual toxicity, and environmental pollution. However, biopesticides do not pollute the environment and do not produce public nuisance. Botanical pesticides are important biopesticides with broad development prospects. Botanical pesticides use certain parts of plants or extract their active ingredients to make pesticides with insecticidal or bactericidal effects. Most of them are low-toxic, do not damage the environment, have few residues, and are low in use cost. [0003] ...

Claims

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Application Information

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IPC IPC(8): A01N65/30A01N43/90A01N37/36A01P7/04
CPCA01N37/36A01N43/90A01N65/00A01N65/08A01N65/14A01N65/28A01N65/30Y02A50/30
Inventor 朱德佳
Owner 昭平县科学技术实验场
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